#!/bin/sh

#ident "@(#)dsnmp_genconf	1.24 11/12/99 SMI"
#
#
# Copyright 11/12/99 Sun Microsystems, Inc. All Rights Reserved
#

#
#  $1 = install  	Script is called by pkgadd
#  $2 = remove	 	Script is called by pkgrm
#  $3 = configure	Script is called by the administrator
# 
# The following vars are declared in pkginfo or in request
#	PKG			package abbreviation

# Exit codes for installation scripts 

e_ok=0      
e_fatal=1      # stop installation on this exit
e_warning=2    # Installation will go on. 
e_int=3        # Interrupted. Stop installation


######################################################################
# UTILITIES
######################################################################

AWK=/bin/awk
CAT=/bin/cat
ECHO=/bin/echo
EXPR=/bin/expr
GREP=/bin/grep
EGREP=/bin/egrep
HEAD=/bin/head
RM=/bin/rm
SED=/bin/sed
TAIL=/bin/tail
WC=/bin/wc 
CP=/bin/cp
MV=/bin/mv
LN=/bin/ln
CHMOD=/bin/chmod
SORT=/bin/sort
SLEEP=/bin/sleep
TOUCH=/bin/touch

######################################################################
# VARIABLES
######################################################################

PKG=ldap

MYDIR=`dirname $0`
EXECSPATH="`(cd $MYDIR ; pwd)`"
PATH="$PATH:/sbin:/bin:/usr/bin:/opt/SUNWconn/sbin:/opt/SUNWconn/ldap/sbin:$EXECSPATH"

BASEDIR=/opt/SUNWconn/$PKG

SNMPD_RC=/etc/init.d/init.snmpd

SNMPSLAPD_CONF=/etc/opt/SUNWconn/ldap/current/dsnmpserv.conf
SNMPSLAPD_BOOTS=/etc/opt/SUNWconn/ldap/current/dsnmpserv.boots
SNMPSLAPD_LOG=/var/opt/SUNWconn/ldap/log/dsnmpserv.log
SNMPSLAPD_RC=/etc/init.d/init.dsnmpserv

TMP_SNMPSLAPD_CONF=/tmp/`basename $0`.dsnmpserv_conf.$$

SNMPRADIUS_CONF=/etc/opt/SUNWconn/ldap/current/dsnmprad.conf
SNMPRADIUS_BOOTS=/etc/opt/SUNWconn/ldap/current/dsnmprad.boots
SNMPRADIUS_LOG=/var/opt/SUNWconn/ldap/log/dsnmprad.log
SNMPRADIUS_RC=/opt/SUNWconn/ldap/sbin/init.dsnmprad

TMP_SNMPRADIUS_CONF=/tmp/`basename $0`.dsnmprad_conf.$$

######################################################################
# FUNCTIONS
######################################################################

bad_usage ()
{
	$ECHO "Usage: $0 { install | configure | remove }"
	exit $e_fatal
}



######################################################################

snmpradius_write_conf ()
{
	$CAT <<TOTO > $SNMPRADIUS_CONF

#
#	The configuration file of the Sun Directory SNMP agent
#	that monitors:
#		- radius authentication server
#		- radius accounting server
#


##################
# access control #
##################

# The list of community names needed for read/write access
# to the entire MIB.
#
# example:
# --------
#
# communities = {
#	public		read-only
#	private		read-write
# }
#
# If the list is empty, the only valid community name is "public"
# and its access type is read-only

communities = {
}


# The list of hosts that can send SNMP queries.
# If this list is empty, all the hosts are allowed to
# send SNMP queries.
# The hosts have to be blank separated or coma separated.
#
# example:
# --------
# managers = {
#	host1, host2
# }
#
# IP addresses are also allowed.
#
# WARNING!
# --------
# If you use the SNMP Relay, leave this list empty.
# The SNMP Relay will substitute the IP address of the host
# who sent the request by the IP address of the local host.
#

managers = {
}


###################
# trap parameters #
###################

# The community name used in traps.

trap-community = SNMP-trap

# The list of hosts where traps should be sent.
# The hosts have to be blank separated or coma separated.
#
# example:
# --------
# trap-recipients = {
#	host3, host4
# }
#
# IP addresses are also allowed.

trap-recipients =
{
$SNMP_TRAP_RECIPIENTS
}

TOTO
}


######################################################################

snmpradius_read_conf ()
{
	$AWK "BEGIN { copy = 0; found = 0 } /#/ { next } /trap-recipients/ { found = 1 } /{/ { if(found == 1) { copy = 1; next } } /}/ { if (copy == 1) exit } { if(copy == 1) print }" < $SNMPRADIUS_CONF > $TMP_SNMPRADIUS_CONF

	DEFAULT_SNMP_TRAP_RECIPIENTS=`$CAT $TMP_SNMPRADIUS_CONF`

	$RM $TMP_SNMPRADIUS_CONF
}


######################################################################

ASK_CORRECT="Is this correct"

DEFAULT_SNMP_TRAP_RECIPIENTS=""

#
# echo $1, $2 contains default
#
askyesno_default ()
{
	while true
	do
		echo "$1 (y/n) [$2]: \c"
		read ans
		if [ "$ans" = "" ]
		then
			ans=$2
		fi
		case $ans in

			"Y"|"y") return 1;;
		
			"N"|"n") return 0;;

			*) echo "\tInvalid Input: $ans";;
		esac
	done 
} 

return_1 ()
{
  return 1
}


# 
# Echo $1 and get string ($2) 
#
get_string ()
{
	echo "$1: \c"
	read $2
}

#
# Check if $1 is a valid host list
#
check_hosts_list ()
{
	PROBLEM=0
	EMPTY=0

	SNMP_TRAP_RECIPIENTS=`echo $1 | sed "s/,/ /g"`

	for i in $SNMP_TRAP_RECIPIENTS
	do
		EMPTY=1

		val=`echo $i | grep "[_a-zA-Z-]"`
		if [ "$val" = "" ]
		then
			echo "ERROR: $i is not a valid hostname"
			PROBLEM=1
		else
			/usr/sbin/arp $i 2>&1 | grep unknown >/dev/null
			if [ $? -eq 0 ]
			then
				echo "WARNING: $i is not a valid hostname"
				PROBLEM=1
			else
				echo "$i ok"
			fi
		fi
	done

	if [ $EMPTY -eq 0 ]
	then
		echo "WARNING: the list is empty"
		PROBLEM=1
	fi

#	if [ $PROBLEM -eq 1 ]
#	then
		echo ""
#	fi

	return $PROBLEM
}


askall ()
{
	echo ""
	echo "Alarms generated by the RADIUS Server"
	echo "will be forwarded as SNMP traps to a list of hosts."
	echo "The SNMP agents will also send SNMP traps to these"
	echo "hosts when it detects abnormal situations."
	echo ""
	echo "Update this list of hosts according to your network"
	echo "configuration. Add only hosts that are running network"
	echo "management software."
	echo "(hostnames must be separated by blank spaces or commas)"
	echo ""

	ASK_SNMP_TRAP_RECIPIENTS="List of hosts that SNMP traps will be sent to [$DEFAULT_SNMP_TRAP_RECIPIENTS]"
	get_string "$ASK_SNMP_TRAP_RECIPIENTS" SNMP_TRAP_RECIPIENTS

	if [ "$SNMP_TRAP_RECIPIENTS" = "" ]
	then
		SNMP_TRAP_RECIPIENTS=$DEFAULT_SNMP_TRAP_RECIPIENTS
	fi
}


askradius ()
{
	ASK_SNMP_TRAP_RECIPIENTS="List of hosts that SNMP traps will be sent to [$DEFAULT_SNMP_TRAP_RECIPIENTS]"
	get_string "$ASK_SNMP_TRAP_RECIPIENTS" SNMP_TRAP_RECIPIENTS

	if [ "$SNMP_TRAP_RECIPIENTS" = "" ]
	then
		SNMP_TRAP_RECIPIENTS=$DEFAULT_SNMP_TRAP_RECIPIENTS
	fi
}


######################################################################
# BEGINING OF THE SHELL SCRIPT
######################################################################


case "$1" in

###################
##### INSTALL #####
###################

'install')

	##### Check if dsnmprad.conf already exists #####

	if [ -f $SNMPRADIUS_CONF ]
	then
		$ECHO "File $SNMPRADIUS_CONF already exists"
	else
		##### Create dsnmprad.conf #####
		$ECHO "Creating $SNMPRADIUS_CONF ..."
		snmpradius_write_conf
		##### Create dsnmprad.boots #####
		$ECHO "Creating $SNMPRADIUS_BOOTS ..."
		$TOUCH $SNMPRADIUS_BOOTS
	fi


	##### Start dsnmpserv #####

	if [ -f /etc/init.d/init.snmpdx ]
	then
		/etc/init.d/init.snmpdx stop
		if /etc/init.d/init.snmpdx start
		then
			:
		else 
			exit $e_fatal
		fi
	else
		if $SNMPRADIUS_RC start
		then
			:
		else
			exit $e_fatal
		fi
	fi
		
	;;


##################
##### REMOVE #####
##################

'remove')

	##### Kill dsnmpserv #####

	$SNMPRADIUS_RC stop


	##### Kill dsnmprad #####

        pidradius=`ps -fe | grep dsnmprad | grep -v grep|awk '{print $2}'`
        if [ -n "$pidradius" ]
        then
                echo "Stopping Radius SNMP Agent"
                kill -TERM $pidradius
        fi

	sleep 2

        pidradius2=`ps -fe | grep dsnmprad | grep -v grep|awk '{print $2}'`
        if [ -n "$pidradius2" ]
        then
		if [ -n "$pidradius" ]
		then
			kill -9 $pidradius
		fi
        fi


	##### Remove dsnmprad.conf #####

	if [ -f $SNMPRADIUS_CONF ]
	then
		$ECHO "Removing $SNMPRADIUS_CONF ..."
		$RM $SNMPRADIUS_CONF
	fi


	##### Remove dsnmprad.boots #####

	if [ -f $SNMPRADIUS_BOOTS ]
	then
		$ECHO "Removing $SNMPRADIUS_BOOTS ..."
		$RM $SNMPRADIUS_BOOTS
	fi


	if [ -f $SNMPRADIUS_LOG ]
	then
		$ECHO "Removing $SNMPRADIUS_LOG ..."
		$RM $SNMPRADIUS_LOG
	fi
	if [ -f $SNMPRADIUS_LOG.old ]
	then
		$ECHO "Removing $SNMPRADIUS_LOG.old ..."
		$RM $SNMPRADIUS_LOG.old
	fi

	;;


#####################
##### CONFIGURE #####
#####################

'configure')

        echo ""
	echo "Configuration of RADIUS snmp agent"
	echo ""

	if [ -f $SNMPRADIUS_CONF ]
	then
		:
	else
		echo "$SNMPRADIUS_CONF does not exist"
		exit $e_fatal
	fi

	ALLDONE=0

	snmpradius_read_conf

	while [ $ALLDONE -eq 0 ]
	do
		askradius

		echo ""
		check_hosts_list "$SNMP_TRAP_RECIPIENTS"

		if [ $? -eq 0 ]
		then
			askyesno_default "$ASK_CORRECT" y
		else
			askyesno_default "$ASK_CORRECT" n
		fi
		ALLDONE=$?
	done

	snmpradius_write_conf

	echo ""


	##### (Re-)Start dsnmpserv #####

	if [ -f /etc/init.d/init.snmpdx ]
	then
		$SNMPRADIUS_RC stop
		/etc/init.d/init.snmpdx stop
		if /etc/init.d/init.snmpdx start
		then
			:
		else 
			exit $e_fatal
		fi
	else
		if $SNMPRADIUS_RC start
		then
			:
		else
			exit $e_fatal
		fi
	fi
		
	;;

*)
	bad_usage

	;;
esac

exit $e_ok